01206 230435 
info@ajsenergy.com 
Covering East Anglia  
Up to 10 years warranty 

Testimonials 

 
Hi Carole, 
 
Thank you and Mark for the prompt and friendly service. 
 
Mrs Milne - 12th April 2024 
Excellent service highly recommended 
 
Mr Trimnell – 11th March 2024 
Mark who serviced our boiler was extremely friendly and professional as ever, a wonderful family business with exceptional service levels. 
 
Thanks Rob, Vanessa and the team 
 
Mr & Mrs Buckle – 11th March 2024 
We have been coming back to AJS for a number of years now to service our boiler and for general heating advice 
We have never had a complaint, just good quality service at a very reasonable price 
Keep up the good work :-) 
 
Mr & Mrs Brown – 4th March 2024 
Routine Boiler Service Appointment 
Mark was amazing. 
He was so helpful. 
Nothing was too much trouble, he even changed the batteries in my room thermostat for me. 
 
Mrs Buckle – 18th September 2023 
Very many thanks for your speedy service, as per normal. 
Please pass on our appreciation to Mark 
 
Mr & Mrs Jones - 24th January 2023 
Thank you for the excellent service 
 
Mrs Neale - 7th November 2022 
Thank you so much for being such a great company to deal with. 
Nothing is too much trouble. 
Thank you once again from one happy customer. 
 
Mrs Sheppard - 28th October 2022 
Hot water packed up. 
Called AJS in the morning, the engineer came in the afternoon and fixed the problem. 
Fast, efficient service. 
Would recommend AJS 
 
Mr Johnson - 5th October 2022 
Boiler installation - Many thanks to all the team for a first class service. 
 
Mr & Mrs Cole - 30th November 2022 
Thank you so much for finding a fault with my boiler when you done my yearly service, you went above and beyond to help by contacting valiant yourself and getting them to come the next day, I have been using your service for 4 years now and would highly recommend you to anyone who needs your service. 
 
Mrs Rhodes - 28th May 2022 
A great job by Rob and associate. 
An obscure pump inside a water tank was identified as the problem. 
Rob then obtained one and fitted it. no mess, no problems. 
A good job. 
 
Derek Southgate - 27th May 2022 
 
We would like to say a big thank you to AJS, and particularly Mark, for your excellent service recently. 
The replacement and adjusting pipework of the broken TRV at the end of last month and the subsequent replacement of the remaining 5 TRVs today has been first class. 
Mark is a very professional, knowledgeable and efficient plumber who is a credit to AJS and we have no hesitation in recommending AJS to family and friends as required. 
Once again, many thanks. 
 
Mr & Mrs Clewlow, Colchester - 8th April 2022 
We are very pleased with the installation of our new kitchen radiator. The whole process of AJS coming out to see us, providing advice about the best type of radiator that suits our needs, and the fitting was excellent. Sean the engineer was both polite and efficient making a good clean job both during and afterwards. I would not hesitate in recommending AJS to our friends etc. Well done and thank you! 
 
Mr & Mrs Allcock - Eight Ash Green - 11th August 2021 
 
Very pleased with with the boiler and solar system. Mark is a polite, friendly, efficient, Engineer, - top man! 
 
Valerie Wratten - 22nd June 2021 
Polite worked hard cleaned up well. What more would you want. Well happy with the work. 
 
Mr Secrett - Colchester - 15th May 2021 
 
Called AJS, following a recommendation, to repair a leaking radiator valve. Job completed by a personable young plumber who worked efficiently and cleanly. Would not hesitate to use AJS again. Well done! 
 
Mr Foss-Smith - Brightlingsea - 7th May 2021 
Please pass on my thanks for such a good job. Quick , efficient and the two guys were so polite and did a brilliant job ! 
 
Thanks to you all 
 
Jeremy Crawley - Brightlingsea - 13th April 2021 
 
We both would like to say how impressed we have been with the service provided. 
Rob was very informative and ready to answer our question on his visit and subsequent emails. 
Carole was helpful when Ann rang to say the boiler had finally conked out and you helped with arranging the new fit. 
Jamie’s pipe work in our boiler cupboard is just amazing. He has completely transformed what was a complete and utter horlicks and along with Callum made the whole thing neat and tidy. They are a credit to themselves and also to AJS. 
Simon came today to flush and do whatever else needed to do and again was helpful informative and explained everything we need to know. 
So all in all you can see we are extremely happy! 
Thanks again 
 
Mr & Mrs Brett - Colchester - 11th March 2021 
AJS were prompt in responding to our request to quote for an air source heat pump system, we also asked them about fitting retro underfloor heating. They had great knowledge of the system and were able to answer any questions we had. They provided a quotation for a Mitsubishi Ecodan with retro underfloor and talked us through the full room by room design to re-assure us in our decision. Once we agreed their quotation we had a date in a very reasonable time frame. When they arrived, full carpet and floor protection was laid down straight away, all mess was cleaned up at the end of each day to a high standard. Great installers that made us as comfortable as possible throughout the installation process and explaining the system to us after it was installed. Would highly recommend. 
 
Mr & Mrs Jefferies - Diss - 9th March 2021 
 
We recently had a new pressurised tank and two showers installed complete with a water tank removed. 
All work was carried out in a COVID safe manner but still within the time quoted. 
All the team from start to finish provided a very professional and courteous service. 
Everything was taken away and no rubbish was left behind. 
Could not recommend enough. 
 
Martyn Holman - Colchester - 1st March 2021 
Mark was once again thorough and efficient, a credit to your great company. 
 
Tim Denham - Wivenhoe - 23rd February 2021 
 
Thank you all very much for your prompt and efficient service. Mark is a great ambassador for your company. 
 
Mr Kettle - Boxted - 17th February 2021 
Can I thank you once again for your help in getting our heating up and running again. Special thanks to Callum who was most efficient, polite and helpful, a credit to your company. 
 
Mrs Goodman - Colchester - 16th February 2021 
 
We recently moved and the combi-boiler in our new house needed a service. We also had no hot water unless the heating was on. I contacted AJS and the lady I spoke with (who was very polite, friendly and professional) offered me a date for an engineer to come out. Rob had already worked out what the problem with the hot water might be and had ordered the part to be ready to fit, saving another appointment to be needed. Mark came to the house and carried out both the servicing and replacement part. He was very courteous and professional, taking the time to check everything was working properly before he left. Today I had a slight issue with boiler pressure - Carole in the office again came to my rescue and managed to slot in a call with Mark. I cannot thank AJS enough for their support and workmanship. Life is difficult enough just now but when you can rely on professionals such as Carole, Mark and Rob to continue to maintain an excellent service it certainly does make a difference. I would recommend them and will certainly be using them again. 
 
Jacqui Smith - Colchester - 1st February 2021 
A few years ago we had AJS replace our oil fire heating system with a gas fired system. This work was completed very efficiently without any hold ups. 
 
More recently the system failed to heat the house.I phoned the office and left a message. Shortly afterwards I had a reply, and after a short discussion it was arranged that a engineer would visit in the afternoon. The engineer arrived and fitted the new part without any fuss. 
 
I have been very pleased with their customer service support they have provided. It is important to have confidence that any problems which occur can be resolved efficiently. 
 
Barry Ruffle - W. Mersea - 22nd January 2021 
 
AJS have been a fantastic help not only in helping rectify an issue I had with my underfloor heating but also in conducting a thorough and efficient boiler service. All colleagues I have liaised with, including Rob, Carole and the gentleman that carried out my boiler service, have been friendly, helpful and knowledgeable, and I would show no hesitation in continuing to seek out their services in the future. 
 
Erin Carman - Harwich - 15th January 2021 
 
Although I had to wait some time before this job could be done (due to the popularity and excellent reputation fo the company!), I am delighted with the quality of the plumbing work completed by Mark. The booking system, administration and communication were all highly efficient. I would have no hesitation in recommending AJS Gas & Heatin Services. Thank you! 
 
Clare Hawkins - Wivenhoe - 3rd December 2020 
 
Prompt response from E-mails, Always turn up on time and do the job. Everything is fully quoted before doing any work and they always give good and honest advise. Never had any problems. 
 
John Barrett- Brightlingsea - 29th October 2020 
Just to say many thanks to your engineer who came round. He was superb, respecting our space and being totally safe. Really appreciate it. 
 
Jason Cobb - Wivenhoe - 22nd Octoberber 2020 
 
Had a new Vaillant boiler installed. Excellent job. Quick, efficient and very tidy. Highly recommended! 
 
John Pyle - Colchester- 21st October 2020 
A very good experience dealing with this company. Clear communication and quick responses. Under some pressure I was very satisfied with their response. 
 
Stephen Woods - Colchester - 15th September 2020 
 
We had our bathroom redesigned and replaced by AJS. 
Rob came out to quote very quickly and gave us lots of ideas and advice. 
We had an old bathroom, with a separate room for the toilet, therefore the wall needed knocking down to create one room. 
A gentleman by the name of Richard completed the entire job (apart from the electrics). Richard was very hard working and reliable. His time keeping was impeccable and he completed the work to a very high standard. He kept me informed at all times. We were so very pleased with the end job. From start to finish everyone who was involved, whether this was the workmen or the ladies in the office, were very friendly, efficient and professional. 
I would definitely use AJS again and would highly recommend. 
Many thanks. 
 
Hannah Bannock- Colchester- 15th March 2020 
AJS was recommended by a tradesman in whom I have confidence. They have lived up to my hopes and expectations. Friendly, competent, prompt, reliable. I am delighted. 
 
David Welham- West Bergholt- 15th March 2020 
 
Thank you very much for the work Mark did earlier this week and the advice you gave the previous week when our central heating stopped working. I booked an appointment with you to get the actuator replaced next week. You rang me as you'd identified that Mark had a free slot in his schedule almost immediately. The actuator was then replaced promptly. As a customer, I found this very proactive and customer-focused. Your engineers are polite and know their stuff. 
 
Mr Giradeau- Colchester- 9th March 2020 
This was the first time that I have used AJS. I found that Mark who came to service my boiler very pleasant and helpful indeed. 
I shall 100% put you in my book as my local plumber heating engineer etc and will definitely use you in the future. 
I shall also recommend you to friends and family. 
 
Many thanks 
 
Marilyn Coham - Colchester - 27th February 2020 
 
AJS provide an excellent service. They are highly professional, courteous and extremely efficient.  
When we urgently needed a new boiler they ordered one and fitted it the next day. Their customer service is the best ever and I would highly recommend them 
 
Miss Evans - Wivenhoe - 17th February 2020 
I’ve been trying to get a Plumber since before Christmas to fit my new kitchen tap!  
 
I contacted one Plumber before Christmas and he said he’d do the job, but contact him in the New Year. After two phone calls and no response, I gave up.  
 
I’ve also been told extortionate prices by other Plumbers, that even I know they’re well overpriced.  
 
On having my Gas Boiler serviced by my regular man on Wednesday 22nd January, he kindly mentioned AJS to me. I rang them that morning and due to having a cancellation, they were round the next day !! A gleaming white AJS Van pulled up and was even a few minutes early. Mark came with his Daughter who was on work experience. They were both polite, friendly and easy to talk to.  
 
Within half an hour my new tap was fitted. Mark even checked my dripping outside tap and fixed that with the turn of a screw in less that two minutes without extra charge ! and also took a few notes and measurements on my en-suite Shower as I’m thinking of upgrading it. My invoice was emailed a few hours later and I paid straight away. I can’t recommend AJS high enough. I just wish I’d found them sooner. 
 
Mrs Karen Smith - Colchester - 28th January 2020 
 
Many thanks for getting the shower issue sorted so swiftly…much appreciated. 
 
Thank you very much for your service, I have been most impressed with all your chaps, they are polite, respectful and go out of their way to be helpful. I will certainly be recommending you services to others in the future and look forward to having a reliable plumbing firm to be able to call on in any emergency. Please do pass on my appreciation to all your team. 
 
Many thanks once again 
 
Mrs Fiona Edmund - Ardleigh - 9th January 2020 
Dear Sir, 
 
Please let me express my sincere appreciation for your rapid response and professionalism in 
the recent matter of our Boiler Repair. 
 
The same standards were evident in the subsequent Service that I requested - a thorough job 
undertaken, the like of which we have received from no other. 
 
I have no hesitation in highly recommending your Company, with special reference to the fact 
that your engineers were a pleasure to have working in and around the property. 
 
Stephen Craig, Brightlingsea - 17th December 2019 
 
Once again AJS came to my rescue, no heat to towel radiator or pipes leading to it, engineer attended at given time, checked everything and solved the problem without the need for new parts. 
 
Ms A Foster, Colchester - 27th November 2019 
Profesional and efficient - right from my request for a quote to completion of work. No fuss and excellent work. Left the house leaving a happy customer with a new boiler and new radiators installed at more than reasonable rates. Can't recommend AJS enough. 
 
Vikram Arora, Colchester - 23rdNovember 2019 
 
Thanks for your rapid response to our recent boiler problem. Great to know that your always past excellant service standards are still maintained. 
 
Andrew Thompson, Colchester - 12th November 2019 
Great company to work with from start to finish. All the staff were very friendly and helpful. The engineers left the area very clean and tidy. Would highly recommend. 
 
Kevin Pennock, Colchester - 26th October 2019 
 
James came to repair our boiler expansion tank. We were told it needed replaced but he was able to repair it. 
I was not there but my wife said he was fantastic. Knowledgeable and efficient, polite and tidy. 
And he has solved the problem. 
We were very very pleased with the service provided. 
 
Mr R. Buick, W. Mersea - 15th October 2019 
I would like to add that the customer service by AJS is perfect. From our calls and correspondence, booking, timings, engineer on site (friendly and efficient) to the invoice, was all without fault. And price realistic! 
 
Dave & Ulli Flinn, Great Bentley - 5th October 2019 
 
Very professional and efficient company. Arrangements for the boiler service were easy to make over the phone and the Engineer arrived very promptly at the agreed time. We have confidence in this company to deliver quality services at a reasonable price. The engineer has always been polite and we are pleased to recommend AJS for central heating and boiler works on the basis of work they have done for us over the last 3 years. 
 
Mr R. Penny, Colchester - 4th October 2019 
I would not hesitate in recommending this company. The appointment to quote for an upgrade from solid fuel to oil fired central heating was carried out in a thoroughly professional and sympathetic manner in order to be appropriate for a period property. The whole process and options available to me were discussed very clearly in a way that was easily understood.. The response time to my initial email was surprisingly quick , the appointment was arranged only a few days later and on the day the consultation was unhurried and methodical. The figure quoted to carry out all the necessary groundwork and plumbing was very reasonable, and the extended guarantee and after service on offer was impressive. This company clearly values the importance of a good customer experience. 
 
Julia Cottee, Colchester - 18th September 2019 
 
I have recently contracted your company to install a new Vaillant boiler at our bungalow. Any previous dealings with plumbing companies had been somewhat unsatisfactory. When your fitters Jamie and Jack arrived they introduced themselves and explained exactly what work they would be carrying out. When they started work I was amazed to see that they were not just fitters but professional fitters. They carried out the work to an excellent standard with little mess and at each stage they hoovered up before doing the next part . On completion they explained the controls and when they left the areas where they had worked were as clean and tidy as it was before they started. 
Our thanks to your company and the standards that you and your staff fulfill on a daily basis. 
We will recommend your company to others in the future. 
 
Mr & Mrs Beecham, Elmstead Market - 17th September 2019 
 
Thank you for all your help in sorting our problem with our central heating. 
You took a weight of our mind. Your team was exemplary in their efficiency, their work ethic, 
and in pointing us in the right direction to help us in recovering our heating. 
Without you, we would still be without heating and hot water. 
Thanks again for all your advice and your genuine interest in dealing with our crisis successfully. 
 
Mr & Mrs Drost, Brightlingsea - 10th September 2019 
 
Swift response to a potentially serious problem. Engineer arrived at promised time, was excellent, explained all he was doing. Highly recommended. 
 
Mr Rose, Colchester - 23rd July 2019 
 
 
Thank you for sending Nathan to assist the end of the project He has been excellent, kept us well informed and worked hard to get the system up and running. Considering the notice, you have stepped in and saved the day! 
 
The level of service has been really good. Thank you! 
 
Oliver Bender, Managing Director of Alan Bender Ltd - 5th June 2019 
 
We recently employed the services of the team at AJS, the work was completed as and when agreed. The whole customer journey from initial discussions to handover to communication with the office was professional, polite & efficient. A real joy to deal with a company of this high standard. 
 
Mr Scarff - Colchester - 22nd March 2019 
 
A really nice company that you can rely on. They will take on a task, think carefully about it, tackle it skilfully and do an excellent job. All office staff and engineers are polite, friendly, efficient and conscientious. 
 
Mr T. Denham - Wivenhoe - 31st January 2019 
 
For ten years AJS has met my plumbing needs with efficiency by cheerful and competent staff and I have recommended them to all of my friends and acquaintances who have needed plumbing services, and will continue to do so. 
 
Mrs Coutts - Colchester - 27th January 2019 
 
AJS are a fantastic professional firm. I have been so impressed with them. I would highly recommend them. 
 
Mrs Ross - Great Bentley - 24th January 2019 
 
AJS can be trusted to do an excellent job. Fast reliable and total trustworthy, highly recommended 
 
Mr A. Lake, Colchester - 8th January 2019 
 
Our grateful thanks to AJS for their prompt attention an brilliant service. 
 
Mr & Mrs Hammond - 6th November 2018 
 
As an elderly customer I have always found this firm courteous, helpful and knowledgeable. They go the extra mile to get a good result. Engineer Mark was kind and tidy, and I felt comfortable that he was doing a great job. 
 
Mrs Wheldon, Kelvedon - 12th October 2018 
 
Extremely impressed with the company from the very first telephone call to the office to the expediency of the work carried out, a new manifold ordered and installed within a week so the underfloor heating could be used. Previously quoted around one thousand pounds by another company but pleased to say total price under 3 hundred. A company that can be trusted and believes in old fashioned customer service. Will definitely recommend this company as nothing too much trouble. 
 
Ms Foster, Colchester - 12th October 2018 
 
A big THANK YOU to Lee for coming to my rescue twice and a third time installing my new underfloor heating system. 
I can’t praise AJS enough, a fantastic team of men. A special thank you to Carol in the office for keeping me informed of what was happening and times and dates of work that was being organised for me. 
It’s definitely a 10 out of 10 for AJS and all the guys and galls. 
Best Wishes Eva 
 
Miss Chapman, Holland on Sea - 4th October 2018 
 
I am writing this testimonial on behalf of my mum. Mum had her boiler serviced on the 28th September and again what a brilliant service . Mark came to do it and he was on time, very friendly, very helpful and very professional. I would recommend AJS to anyone and will certainly use them myself in the future if I need any work doing. So thank you once again. 
 
Liz Clewlow on behalf of Audrey Dean, Colchester - 2nd October 2018 
 
Boiler serviced. An excellent and thorough job. Would highly recommend, and will definitely use AJS again. 
 
D.Letton, Bradfield - 20th September 2018 
 
We used AJS for the first time and will now be using on an annual basis. The service engineer was extremely punctual and polite. I have recommended to family members. 
 
K. Brindle, Colchester - 11th August 2018 
 
 
We were very pleased with the work carried out last week to strip out existing tank within the loft space and the hot water cylinder replacing them with a Joule direct 170 litre pressurised cylinder. The workers worked non -stop and were very thorough , very tidy . Thank you. 
 
Mr & Mrs Prior, Lawford - 23rd July 2018 
 
 
Our company is using AJS for the first time, on a development of 5 apartments, we have found the workmen to be punctual,professional,pleasant & polite, long may it continue. 
 
Clive Harwood - Director - Rose & Harwood Ltd - 21st April 2018 
 
AJS were called when a pressure problem within our boiler had led to a pipe splitting. Another local company were called first, who charged a ridiculous price to assess the problem and I just couldn’t trust them to fix the boiler for anything less than a small fortune. I replaced the pipe myself, but the pressure was still wrong. 
AJS are completely professional, honest and serviced the boiler fully for less than the previous company charged for simply looking at the problem! 
We will be using only them from now on. Great service. 
 
Tony, Colchester - 20th April 2018 
 
Once again used the services of AJS. 
Nothing is ever straight forward but the quality of a Company is when they can solve the problems in a quick and trustworthy manner 
My father in law is very vulnerable but have total confidence in theses guys. 
 
Mr Kearney, Colne Engaine - 21st March 2018 
 
I've used AJS heating and plumbing many times in the last five years and have found them without fail to be responsive, helpful and always willing to try and fit in to our timetable and arrangements. They certainly go the extra mile. There have been many occasions when an urgent matter has cropped up and their willingness to try and create a space in the diary to help us out is a source of considerable reassurance. 
Their skills and professionalism are as good as any we come across. 
 
Jamie Cundall, Concord Property - 20th March 2018 
 
 
The boiler service last Thursday 22/02/2017 could not be faulted. Efficient service and no mess after whatsoever. I would recommend your company to anyone. 
Kind Regards, 
 
P. Dowson, Bradfield - 26th February 2018 
 
The boiler service was prompt and efficient, carried out by a very courteous, helpful and knowledgeable engineer. 
We will be booking AJS for future annual service and other needs. Would highly recommend. 
 
Susan Lillywhite, Wivenhoe - 14th February 2018 
 
As I type this it is an opportunity to tell Rob how pleased and impressed my wife and I were by the confident and careful way in which Jamie and Jack carried out the work, leaving the affected rooms clean and tidy. They are to be complimented, and they left the house getting nice and warm. 
 
Clive Pougher, Colchester - 12th February 2018 
 
A J S have just removed a bath and replaced it with a new walk in shower there were a few technical issues with the installation but top plumber Simon took it in his stride and produced a great finish. He also fitted a water softener in the garage, the pipe work was a work of Art. He then replaced a damaged sink in the Kitchen and made a really nice job of it. Would like to thank Rob, Vanessa, Carol, Simon and all the other staff at AJS for their help. I would recommend this company to anybody who wants a 1ST CLASS JOB thanks once again Guys REGARDS ALEX 
 
Alex Cowper, Weeley - 11th February 2018 
 
Engineers arrived on time very friendly, removed old boiler made good the hole in the wall, Installed new boiler in the location we requested. Extremely pleased. Very neat and tidy installation. Explained everything and left the house as tidy as they found it. Great company I would recommend them to anyone requiring a new boiler. or just a service. It`s the second time we`ve used them and would not hesitate in the future... 
 
Paul & Dawn Hancock, Colchester - 9th February 2018 
 
I am delighted with the service I’ve received from AJS. From initial call out to my clanking elderly boiler (which they then managed to keep going for several weeks while I made up my mind which replacement system to opt for), to the superb advice and service they gave in specifying and delivering the new boiler, they have been exemplary. I had to be away on the day they could fit it and I was nervous about what I would come home to find, but you wouldn’t have known they had been in the building except that the house was warm, the water was hot and the new boiler was gleaming on the wall. 11/10 and I can’t recommend them highly enough. 
 
F Brown, Brightlingsea - 9th February 2018 
 
Booked our yearly boiler and gas fire service with AJS, Mark Bilby their engineer turned up on time and was in and out in under 2 hours, very friendly and highly efficient at a great price, would definitely recommend AJS. 
 
Mr & Mrs Farrow - 23rd January 2018 
 
Very friendly and efficient engineer arrived ahead of time, gave my boiler a long overdue service with no problems and left no mess at all. Supporting paperwork and invoice arrived same day by email. What's not to like? Would recommend AJS to everyone. 
 
Richard Cole - Colchester - 18th December 2017 
 
Very pleased with the exemplary service given to us and the speed at which the company came out when we had a bad leak in the bathroom. Will highly recommend. 
 
Mrs Carol Balls - Wivenhoe - 9th December 2017 
 
We had an issue with a clients boiler that had been condemned by another sub contractor. AJS attended site, quoted for a new boiler installation and then installed it all within a couple of weeks. Fantastic service and engineers, we would highly recommend. Best Regards. 
 
Duncan Wilson - Northover Contracts Ltd - Colchester - 29th November 2017 
 
Really, really happy with the service from AJS. Good price, tidy workmanship and a friendly engineer. I was delighted to also receive extra support and advice about my solar water system. Many thanks 
 
Katy Haylett - Colchester - 21st November 2017 
 
Called AJS for an emergency call out as we had hit the main water supply into our site, response was swift and we were back up and running with no down time on site, thank you AJS. 
 
Robert Power - Brennan Group - 15th November 2017 
 
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